10010112222221 has 2 divisors, whose sum is σ = 10010112222222. Its totient is φ = 10010112222220.

The previous prime is 10010112222181. The next prime is 10010112222251. The reversal of 10010112222221 is 12222221101001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9862897275625 + 147214946596 = 3140525^2 + 383686^2 .

It is a cyclic number.

It is not a de Polignac number, because 10010112222221 - 2⁴² = 5612065711117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10010112222221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10010112222251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005056111110 + 5005056111111.

It is an arithmetic number, because the mean of its divisors is an integer number (5005056111111).

Almost surely, 2^{10010112222221} is an apocalyptic number.

It is an amenable number.

10010112222221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10010112222221 is an equidigital number, since it uses as much as digits as its factorization.

10010112222221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10010112222221 its reverse (12222221101001), we get a palindrome (22232333323222).

The spelling of 10010112222221 in words is "ten trillion, ten billion, one hundred twelve million, two hundred twenty-two thousand, two hundred twenty-one".